Carburetor



Aug. 23, 1927. 1,640,291

R. D. PERKINS CARBURETOR Filed Oct. 4, 1926 INVENTOR ATTO R N E.Y

Patent ed Aug.

Y vide will be saturated .with

f-B TENT RALr1r'n. mamor,.-xnnos rrn, isconsin.

. cannunn'ron'.

" -.App1ication'filcd. cutter-4; 1926', seri i No. 139,452.

This inventionrelates to a carburetor, the.-

generalobject oftlie invention'being to pro-L awick' which extends intothe gasoline or other fuel so that it ,will become saturated with thefuel, with means for drawing. the air supply through the wick-sthat'the'air the fuel; .thus' 'providi'nga more perfect" with'the airand preventing dust, and dirt from being drawn. into the motor with" theair.

A further object of; thetinvention; is to rovide means for heating thegasoline-or fuel by the heatedair jdrawnffroma stove so that thegasoline. will be more volatile.

- A further object of the invention is to {I so arrange the parts--..-;the heated body of gasoline canpass directthat- ,the fumes from" 1yto the motor, thus making easier start- 1' ling ofjthe motor.

A stillyfurther object of the intention is from*entering the carburetor.

lustrated in the accompanying drawings-an otherfeatures of constructionand in the "This invent on also consists in certain combination andarrangementof the several parts, to be hereinafter fully described, 11-specifically pointed out. in the appended-- claim.

In describing my invention in deta1l,' reterence will be had to the'accompanylng Figure 2 is a section on eral views, and in which drawingswherein like characters denote like or corresponding parts-throughoutthe: s ev- Figure 1 is a longitudinal sectional view through theimproved carburetor. line 2 -2 of Figure. 1. -'j Figure 3 is a view ofthe wickand adjustable shield.

In these views; has a chamber 1 is adapted to be ply by the nipple 3;The chamber is pr'o- 1 indicates afcasing which vided with theperforations/l so. that heated air drawn from a stove through ,theconnection 5 and its. enlarged end 2 will pass through the passagesformed by the porforaber. 1 and a pipe 7 is formed .with the cover andtions and thus'heat the gasoline inthe chain- A' cover 6 is provided torthe casing has a portion extending wellintothe casing 1, with the outerend of the pipe being adapted to .be connected with the intake manifoldof a motor. A second casing 8 ing. through mixture of the fuel providemeans for preventing back-fire.

- the' passage 18 between formed at its bottom which connected with-afuel supof "consider-ably less diameter than the first casing; isarranged in the first casing with its flange-"9 held between the top ofthe first "casing andf'the cover 6.

Thetop of the casing 8 'is provided with theperforations .10' so thatthe air passing-into. the first casaround thesecond casing, will enterthe same .a'ndywi-ll pass from the said casing into the pipe '7. andthus enter the engine. .z'Before passing'intothe pipe 7 however, the airmust supported by'a cylinder 12 of wire mesh, the wickacylincler' beingsurroundedby a held. in spaced Two of these. rods are extended to -passthrough the covert, where they are pro- .videdifwith the nuts 15,springs'16 being arranged on the extended portions of the rods-and.tending to hold the shield in its lowest position. By

less of the "wick subthelower part of the. casing 8, the entrance ofthis fuel from the chamber 1' being controlled through a valve '17 whichcontrols the chamber and the stem 19 of theflvalvc being fasca'sing' 7float 20 so that but a certain tened to a amount of liquid can: enterthe casing 8 from.

the ch amber.- the wick will lineor fuel which saturates the wick.

Thus-the air passing through A-deflector cone 21 is suspended from the Iinner end of the pipe 7 for preventing the air' and gasoline vapors fromentering directly into the pipe 7. I Lvalve 22 controls the flow. ofthemixt ure through the pipe 7 and'an u'pw'ardl bpening valve 23normally held open by a spring 24, is arranged-in the pipe for.preventing back-fire from-the motor' adjusting the nuts. 15' ,on' the,rods, the shield' can be raised 1 or 'lowered to expose more or and.thus regulate the amount ofwick with which the air'will oomei-n Contact.The wick and'screen have their lowerends d -merged in the gasoline orother fuel in the passages4,.after passing.

pass through a wic'k cylinder 11 whichis p "'10 two-part shield 13, theparts of which are relation by the rods 14.-

beimpregnated with the gaso air passing through pregnated with the airpassing in the pipe 7 the-cone 21 causing the vapor to mix with the airas it passes into the pipe. By' adjusting the shield, through means ofthe nuts 15, more or less of the-Wickwill be exposed so that the amountof gasoline in the air can be regulated. This device ,will prevent dustand dirt being drawn into the motor with the air, as the wick acts as afilter or strainer for the air. It also prevents dirt in the gasolinefrom entermgthe motor. 7 -'Ihe-device5 eliminates the use of needlevalves and other complicated adjustments,

as the richness of the mixture can be regu-f lated by adjustingtheshield on the wlck; The valve 17, being alwayscovered =with gasoline,will be kept clean so that itvvill need no attention. By heating theasoline, it Will be made more volatile an the fumes from the hot I 0starting. -.'There is no danger'of flooding the i gasoline can pass di-.rectly to, the Cylinders, thus making easier.

carburetor in starting and the device gives a better and finer vapor.than where the airsimply passes over the asoline. V

It is'thought from the foregoing description that the 'advanta es andnovel features of my invention will e' readily apparent.

I desire it to be understood that'I may make changes in the.constructionand in the combination and arrangement of the several parts, providedthat such changes fall with 1n the scope of the appended claim.

What I claim is:'- s an internal combustion A carburetor for enginecomprisin inner and outer casings spaced apart, a uel chamber in theouter 1 .casing and in communication with the innor casing, a floatcontrolled valve for con: trolling such communicatwn, a cylindrical Wickin the inner casing and depending intoa the fuel therein, an outlet intothe space defined by for permitting the suotlon in the chamber andaround the inner casing and into the same and through the wick and anadjustable shield surrounding the.

wick and having anopening exposing-portions ofthe wick.

In testimony v RALPH D. PERKINS.

pipeextending thewick, means of the engine, to draw heated airthroughpassages formed whereof I aiii x my signature.

